Forum Replies Created
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In reply to: 2022 Riesling
November 12, 2022 at 9:25 am #3015Don GrahamParticipantMy #s on settled juice
Brix 22
ph 3.45
TA 6.8
YAN 98
Added tartaric to get the pH down
Grapes were ripe and some wild ferment had startedIn reply to: 2022 Syrah
October 31, 2022 at 10:14 am #3006Don GrahamParticipantMy #s on a fairly clear sample after 4 days cold soak
Brix 22.6
pH 3.75
TA 5.6
YAN 119
Am considering an acid additionIn reply to: 2022 Merlot
October 24, 2022 at 4:19 pm #3000Don GrahamParticipantMy #s for Chris Gebhard’s juice
Brix 26
pH 3.67
TA 4.6
YAN 83In reply to: 2022 Viognier
October 18, 2022 at 1:58 pm #2998Don GrahamParticipantTest #s on cleared sample at 20 c
Brix 23
pH 3.68
TA 5.0
YAN 98
A 2 g/l tartaric lowered pH to 3.31In reply to: 2022 Chardonnay Chemistry
October 12, 2022 at 5:14 pm #2974Don GrahamParticipantMy #s on cleared juice
Brix 23.6
pH 3.20
TA 6.0
YAN 56 low
Added 0.5 g/l tartaric
DonIn reply to: 2021 Chardonnay
October 22, 2021 at 11:28 am #2861Don GrahamParticipantDon Graham numbers:
Brix 25.3
pH 3.60
TA 5.8
Added 1.5 g tartaric and in One L sample it loweredpH to3.37
Added 5 L h2o to drop Brix
Couldn’t get YAN so am assuming it is lowIn reply to: 2021 Chardonnay
October 22, 2021 at 11:28 am #2860Don GrahamParticipantDon Graham numbers:
Brix 25.3
pH 3.60
TA 5.8
Added 1.5 g tartaric and in One L sample it loweredpH to3.37
Added 5 L h2o to drop Brix
Couldn’t get YAN so am assuming it is lowIn reply to: 2021 Pinot Noir
October 3, 2021 at 1:30 pm #2841Don GrahamParticipantMy test results on clear juice at 20c after 3 days cold soak
Brix 27
TA 3.81
TA 5.0
YAN 84
I will lower the pH and the BrixIn reply to: Chemistry Results for 2020 Pinot Gris
November 9, 2020 at 5:48 pm #2609Don GrahamParticipantBrix 22.7
pH 3.34
TA 7.0
YAN 180
Nice JuiceIn reply to: Viognier Numbers
October 21, 2020 at 6:13 pm #2579Don GrahamParticipantBrix 23.2
pH 3.78
TA 5
YAN 56In reply to: YAN and Chemistry – 2019 Cabernet Franc Rosé
October 1, 2019 at 8:56 am #2411Don GrahamParticipantBrix 19.7
PH 3.46
TA 5.8
YAN 56
Adding tartaric to getTA 7 and lower pH
YAN low so adding nutrients at startupIn reply to: YAN and Chemistry – 2018 Pinot Gris
November 23, 2018 at 11:59 pm #1793Don GrahamParticipantMy #s
I whole cluster pressed on the day of delivery and froze the juice
My sample came from the thawed and cleared juice
Brix 22.4
pH 3.15
T A 8.0
YAN 126
Very niceIn reply to: Chemistry and YAN Posts
September 30, 2018 at 2:39 pm #1721Don GrahamParticipantMy #s
Brix 23.2
pH 3.47
TA 5.7
YAN 56
YAN is low much the same as last yearIn reply to: YAN and Chemistry
September 22, 2018 at 6:00 pm #1703Don GrahamParticipantMy numbers
Brix 21.8
pH 3.5
TA 4.9
YAN 112
Used the new 0.2 M NaOH
Adding tartaricIn reply to: Chemisty and YAN Posts – 2017 Malbec
November 1, 2017 at 9:47 pm #1083Don GrahamParticipantBrix 22
Ph 3.68
TA 4.9
YAN 140
Surprisingly low Brix